$12 Casio Diving Watch!? MythBusting Water Resistance
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- Опубліковано 26 вер 2024
- Today we're testing and mythbusting the common held view of water resistance in watches by using a $12 Casio F91W.
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Check out my shorts to see the test done by holding it up in the air, pressurizing the tank and then lowering it into the water to look for bubbles. Future videos the test will be performed this way. Hopefully this still shows the ability of the watch regardless! Thanks everyone!
Finally, the whole story about water resistant watches. That took nearly 10 years of watching YT reviews to get to this comprehensive detailed video. Bravo..!!
Glad I could help!
Harrison just single handedly destroyed the diving watch market haha
The rotating bezels are cool though!
I use a Casio Dura not wasting 1000s on an expensive watch
@@wyldwiisel9126 That Duro will handle anything you throw at it.
😂😅 NOT a diver just an average snorkeler & pool commando. I’m a Casio fanboy 😂
I’ve been telling this to the dive watch and watch community in general for years and the topic has almost always become heated. Thank you for your video.
Appreciate it!
I took an F91W on my PADI Advanced course and went down to 100ft. It was absolutely fine.
Hahahah
Finally, a comprehensive answer to the "maybe you can wash your hands with a modern 30m water resistant watch" people.
I swim with my speedy all the time.
It’s revealing and depressing at the same time. In reality all we need is a $12 watch unless we are going to the Operatic theatre.
waech is a toy for making yourself happy
Unfortunately yes
Agreed, it is a little depressing. I have 7 watches totalling a few thousand bucks and the truth is I wear my Casio more often than any other. It's worth noting it's not just any $12 watch, it's a Casio.
Nah. I wouldn't want to wear a piece on plastic strapped directly to my skin every day. That can't be good, can it?
@@kresimirpleic still, drinking and eating from plastic must be much safer
One specific thing you did not mention about ISO 6425 is that this standard requires every single watch that is being produced, to be pressure tested up to the rated depth + 25% and remain at that pressure for 2 hours. After that test, a condensation test must be performed to check for water ingress.
This means that if you buy a watch that has "DIVERS 200 m" on the dial, that that very watch has been at a pressure equivalent to the rated depth + 25%.
I am glad that you debunked the myths about water resistance.
Very good point! You are correct!
Plus other durability tests.
@@folksurvival No. All other tests mentioned in ISO6425 are so called type tests, meaning these are only performed on a newly developed watch when it goes into production. Only the waterproofing and condensation tests are performed on each and every watch.
Very interesting! I’ve never even considered any watch less than 200m and I don’t even dive anymore 😂
I wear my F91w during my swim work outs in the pool.
I swim 1,5 km twice a week, doing all kind of strokes, freestyle, butterfly, back stroke, breast stroke... no problem! Works perfectly fine! 👌😊
It really must be the best watch for the price and with a cool history to go with it! Can't go wrong!
Great video! Thanks for clarifying!
Awesome to hear!
By far the most interesting video in any UA-cam watch channel in ages
Glad to hear it!
I don't think you're using the machine correctly.
Your meant to pressurize with the watch above the water level. Let it sit. Then lower into the water. Then slowly release the pressure and watch to see if bubbles are released from the watch.
I’ll make a short doing the same test this way. Good callout. Clearly it still should work, but we’ll see. Took too much time researching ISO certs and not enough on the machine
Why is that the methodology?
My guess is one might assume it’s more realistic because on a dive you’d start in air then go to water. But in this tank isn’t the air at the same pressure as the water, which is of course unlike real life?
Am I misunderstanding something?
@@rbalfanz since air molecules are smaller than water molecules, if it's airtight, then it's definitely water tight. The correct method allows you to check the seals without risking water getting into the watch.
@@jeebusmcfries8114 Exactly. Airtight is as good as water tight and if a seal has failed you didn't fill the watch with water. You'll see where the bubbles come out and know where the problem is.
@@rbalfanz as others have said, it's not meant to be a destructive test if possible.
The other aspect, it's hard to observe water intrusion. But a bubble stream is easier to observe.
A small step for the F91W - a huge leap for GodTier watch lovers
Nico would B proud mate 😊
I’ve a small watch collection of maybe a dozen. In 2020, I bought a F91 for sometimes sports wear. Always love it. Not that it really matters, it now has a nylon strap and my old casio A700 module inside. In Feb 2024, it accidentally went through a full wash /dry laundry cycle. No issues or damage. Recently opened the back, dry as a bone. Thats enough water resistance for me.
I think the minimal water resistance rating on the basic Casios is partly because you're not supposed to operate the buttons under water. But I believe you can do so on the basic G-Shock square DW5600. That's a $50 watch that does almost everything, and you can drag it through hell. On the low end, I prefer the F105 to the F91 because of the EL backlight, which is like Timex Indiglo. Similarly, in stainless (with a metal plated resin case), I like the A168 better than the A158 for the same reason. Overall, it's incredible how good these are for the money.
funny thing is that I used to snorkel-dive with a swatch all thru the 1980's to depths of about 15 feet. This is what most recreational watches go thru. I never had a leak. Fast-forward to recent times and manufacturers tell usthat the same "30M" rating is only good for "splashing". Shows that these companies lowered standards to what they wanted to, to achieve cost-savings and reduce liability. As a side note, the author of this video is quoting the "new" ISO rating that came out 12 years ago and is optional (ISO22810). Most companies still use the older 30-100-200 ratings that had the "splash"/"Swim"/Dive levels.
Buy a Russian Vostok Amphibia. Those are really waterproof unless you dive to depths that would kill you in which case you won't need a watch.
IUse my f91w for sailing, shallow water diving, and swimming, here on the south shore of long island. Have had the same one for almost 10 years and it's been great!😂
I think it was 1971 when watch makers had to stop calling their watches waterproof and instead say water resistant. You will often find vintage watches from the early 70's where the case back will say water resistant but the dial will say say waterproof. This is because the dial was made before the date of the change. Most diver type watches will state the minimum water resistance and rarely the maximum. The Vostok Amphibia has a 200m water resistant rating but has achieved twice that. 👍
I used a Vostok komandirskie for daily and it also had 200m water resistance
800 metres before it stops working and 1200 metres before it implodes and leaks water 😁
@@andrewallen9993 The Vostok Amphibia was designed for the soviet military.
@@orvillefindley8117 So the designers and manufacturers would have received a long holiday in a Siberian salt mine if the watches WEREN'T as waterproof as stated 😁
@@andrewallen9993 It was actually Stalin who started the Soviet watch making industry immediately after WWll. It came about when a lot of soldiers returned with watches that were given to them by Western forces. The original Amphibia was not available to the general public and could only be purchased by soldiers at designated military shops. I have a very nice Vostok Amphibia and a Komanderskie with the KGB dial. 👍
This was great! Thanks for clearing up about water resistance tolerance for us layman. I've been collecting watches for a long time but just took for granted that 30 meters meant it was good for getting it just a bit wet. I have many watches from that same Casio to Rolex Sub and now I know I don't have to worry too much about water tolerance.
Thank you. These WR myths need to end. Too many people are missing out on great watches because they are under 100m WR.
Agreed!
Very well explained, I don't think most people understand how deep 100 meters is. 99% of the time is someone's watch is deeper than 20 feet it's because it fell off of their wrist. This might be a big ask but can you do the pressure test on a Casio "Duro" MDV106? That's probably the most affordable dive watch on the market. Casio claims a 200m WR with this watch, it would just be nice to know. Thanks!!!
Thanks for dispelling all the misunderstandings about diving depths and pressures, etc
You bet!
Finally, someone said it and back it with hard facts. You Sir, have earned my subscription.
Thanks!
Ty for busting myth. The other day someone on Reddit was just arguing with me Tissot gentleman with 100 wr isn’t good enough for diving which is just ludicrous.
If I’m at the river or in water I take the Casio I like the protreck line a lot! I have a few but my ole PRG-240 is my go to. Remember to replace your o-rings every ten years!
Thanks for the video. I have one of these Casio watches, along with a number of diver's watches. I consider it the 'coolest' watch in the connection. 👍
Maybe other comments have covered this, but in case anyone is thinking of using one of these pressure testing chambers with their watch, this isn't the way to use them.
I realise that for this video the watch is cheap and can be replaced easily. But the way to use this device is to hang the watch in the air space above the water, then increase the pressure. If the watch isn't sealed properly or the gasket needs replacing, only air will enter the watch. Then you release the pressure and lower the watch into the water at the same time. The air at higher pressure inside the watch then starts to escape, and you will see bubbles coming out of it where the seal is compromised.
This means that the watch could be re-sealed or repaired but no water got in to ruin the movement inside. Even very expensive watches can require a new gasket at times, especially after battery replacement or servicing. It would be an expensive mistake to allow water to get into the watch.
Thanks again for the video.
Very nice video, Harrison! I like that you have experience as a diver and shared what it’s really like down there. Most of us have no real understanding.
For me, I just want to be reasonably assured that my watch won’t be destroyed when being outside in the rain, swimming, and cleaning it occasionally. I’m thinking “50m” would assure all these things.
Nice video. Thanks.
Awesome video! I believe you have to pump up the pressure while the watch is above water for the air to get in the case, than submerge and release the pressure above to see if the high pressured air (should it have got in the case) now escape to equalise the pressure.
Yep, that's how you should test...
Isn’t that only to avoid water ingress, in case of an expensive watch? This way is more realistic
@@wonderwatch2239 You are pressurising the air above the water, the air will only get in if the seals are compromised. When you suddenly drop the pressure the pressurised air will escape. You drop it in the water to see those bubbles escape. The water serves as an indicator to see the bubbles and not to provide the pressure.
I think that's just for checking for air leaks in empty watch cases for automatic watches.
@@wonderwatch2239 air molecules are smaller than water molecules. if it's airtight, it's definitely water tight
Seriously excellent content. Bizarre that it's so hard to find this kind of content online, you're unique in this field. Thanks for making this video!
I own one. Been swimming with it in the UK cold ass sea every day for years. Still works to this day
Thank you. It’s about time someone did this. Liked and subbed. 🙏
quite informative. thank you. i knew that some of the watch reviewers did not know what the actual water resistance is on the actual diver watches. shameful, so thanks again for the info.
Such a great explanation and demonstration. This just proves how well made Casio watches are for absolutely no money. I hope people understand that it's not any cheap watch, it's a Casio. If you did this test on a generic cheap watch it wouldn't have the same reault.
Yup I’m surprised he didn’t mention this
Casio watches are over engineered I don’t think fashion watches with 30m wr can do this
Great advice for non divers.
I am a highly experienced diver, and trained to a very high level by world class professionals.
I use housings on the surface and at depth, and the seals are at greatest risk of leaking when at the surface and dunking the housing in a freshwater rinse tank (not recommended). This is because the seals are not under pressure and so are at their least resistant to working. That is why the standards are different for splash and depth.
When diving, I may have a dive computer on each wrist of different brands, one of which is wirelessly connected to a tank pressure meter, and a third dive computer physically connected to the tank. All of this is to not get caught out by equipment failure in the wild.
In other words, when I dive I have no space to wear a dive watch, so in a watch for me splash resistance is way more important than depth.
Best WR video to date. Thanks.
Would this hold true of automatic watches from companies such as Seiko who at 3Bar WR actually state not to swim with it?
Yes. That is exactly what the ISO 22810 standard is all about. If you state 30 m, it should handle 30 m at least.
The additional margin you need is in case you strike your watch against a hard surface (scuba tank, rocks, etc). An engineering margin of safety is usually double the max static pressure something might be exposed to. Underwater is a pretty harsh environment and the testing is under idyllic conditions (static temperatures, clean water) so I’d expect the spec to be more conservative.
You did not read the direction that came with the machine? With the watch OUT of the water, bring the air pressure up to 3 atmosperes. Wait a minute or two then lower the watch into the water. Release the air pressure and observe if any bubbles come out of the watch.
I am guessing this means that the test he has done is worthless?
@SirGwl pretty much useless by waterproof watch standards used by watchmakers all over the world.
Yes, the way he did it, you would not be able to tell if water was getting inside the case…
This was really cool and informative as a big fan of these casios, thanks
Glad you enjoyed!
so many cool aspect of this video, but remember without light source, you do not want to be pushing any built in light button on casio. And oil filling them will probably make them last to the abyssal zone. I think I've seen a 2100 g shock oil filled to be able to do that on youtube.
A friend found a similar Casio among the rocks shore submerged for who knows how long, he cleaned it and it works perfectly.
Today i mistakly scratched my my watch from iron bench in school 😢😢
The F91w generally fails at 200m as the acrylic caves in.
Good to know. 🙄
Yeah…. I think humans die first before the watch does 😂
@@jpdemer5 This same channel has a video entitled "$30 Casio = 600ft Under Water?!" showing an A158 failing at 200m.
That test just destroyed all of the Rolex fan boys!🤣🤣🤣
You should put the Omega Speedmaster in that pressure chamber to see what it can really handle.
Yours first! The bubble test would be what you want to do: (1) 60m of air pressure, then (2) dunk it, then (3) release the pressure.
Loved this video. My 2011 Breitling Aeromarine SuperOcean is rated at 2000M...or 6600ft...with an automatic helium escape valve. It does just fine.
A bit excessive no? Its not like you've ever going to go that deep haha
Thank you for this. This is excellent content!
Glad you enjoy it!
Sir, can you rinse & repeat this using the same watch until the gaskets give up?
Thank you in advance from a spend resistant watch collector.
First time seeing one of your videos! Really well done! Great work
Very interesting and useful video; thanks for taking the time to make it!👍
From experience with these Casio’s, my favorite included F-108 as long as the case isn’t broke if water got in. Taking the module out and giving it an alcohol bath, making sure everything is cleaned and dried, it’ll still work.
You’re not using the instrument correctly. You must pressurize the vessel while the watch is above the water. Once pressurized then you lower it into the water. This prevents water from entering the watch if its not water resistant. When you slowly release the pressure bubbles will start coming out of the watch if its not water resistant. At this point lift the watch out of the water and no harm will be done.
Question: if air escapes the watch, isn’t it being replaced by water?
Also, is the test in the video a complete bust that negates the conclusion? (lol. Physics is tough for me!)
Bergeon SA has an instructional video on their UA-cam channel. I've seen more than one UA-camr do it wrong.
@@geoffreydlin8043 The air in the watch is not replaced by water. As soon as you see bubbles coming out, you lift it out of the water. I'd say the video is a bust.
I think I figured it out. When the watch is pressurized through the air, if air squeezes into the case, when it’s immersed into the water and pressure is released, the water is just there to see the air escaping in the form of bubbles.… Right? The water doesn’t do anything except help visualize what’s going on.
@@geoffreydlin8043 Correct! I suppose if you don't lift the watch out of the water in time after depressurizing then you risk water entering the watch.
Thank you for making this video!
The cave diver Sheck Exley used to wear Casios on all his dives. I'm not sure if they were f91w's or not, but they were cheap digital Casios. He'd wear two on his wrist and also wrap them around the regs of his staged decompression tanks as backups, but he never had one fail even in extreme technical diving beyond 200m. I dive with a duro or an ISO diver just for easy readability, but I'd have no reservations about diving with an f91w either.
I love the explainations!
The only reason I spent $20 on my plastic Casio digital watch is that it has a much bigger font than the F91W, so I can read it at a glance even with my aging eyes. I swim in it in salt water (rinse it later), I wear it in a pouring rain, and in any other inclement weather that Florida can throw at me. Zero problems. I would never spend thousands of dollars on a beater watch. That's insane. Dress watch might be different, but beater watch? No.
Which casio model do u have?
@@ex0ticx0x AE1500WH-5AV.
That's a brilliant video Sir 👏
1:48 - Is there by chance a typo in part 5 here? Because “30 cm + 2 cm” (for a total of 32 cm or about 12.6 inches) doesn’t seem like much depth?
Also (2:25), you helpfully go over about how ISO 22810 requires that watches be able to withstand being submerged to the actual depth of their rated water resistance (which I didn’t know!). And along those lines, does ISO 22810 apply to all watches? Or by chance might some watch brands still continue to use the old way where 30 m of water resistance means “splash resistant”?
Ooh, also, can you try and get it to 40m depth pressure as fast as possible? Descent speed could matter in this respect. Once a year I do a negative entry down to 40m, meaning; drop backward off the zodiac boat and immediately going down to 40m headfirst as fast as possible.
I enjoyed watching this. I remember Michael Schumacher had one on his F1 steering wheel to time his laps.
I just stumbled across the h20 kalmar 2 Deep Diver. It’s rated at 25,000 meters. Can you test that next please? I’m interested in exploring the bottom of the ocean and I need a watch I can depend on.
Deep certification (40m) is pretty standard in Europe… not so much in the states then? I assumed it’d be rather the same…
But....but....but it looks really cool and makes me feel special when it says "200" on the dial!
I had one for a few years. I swam with it for ages and it never faltered.
Curious if you would ever test a Freestyle watch (we had them in the early 90s in Florida everywhere). Supposedly built for the water.
Most divers are going to rely on their dive computer anyway, so at most a wristwatch is just a cheap back-up. I've only done about 100 dives, mostly in Cozumel. Most of the divemasters on the boats there wear Casio's like this one. The safest way to go is with very simple and minimal and well-maintained equipment. A 300m Omega Professional or a Submariner or whatever are only for dumb bragging rights. Don't wear them while washing or in the shower though- soapy water gets past the seals much easier!
It is the quality I am concerned about. A Hamilton Khaki Field claims 50 meters water resistance. But, will it really do it ? The F-91W just proved its Legendary status. I look forward to your other tests.
i forgot to change my 60m rated IWC spitfire for my 500m rated Sinn U50 dive watch and went surfing with it. it is a 5000$ watch and water got in it. it cost me a packet to have it fixed. so just because this casio can withstand a high pressure doesn't mean that all the watches on the market withstand the depth it says on them. if its iso certified then you can believe the depth rating. if not then you better stick with the manufacturers recommendations. nobody goes diving with a 50m rated speadmaster.
finally some sence. All people here act like the manufacturers diminish their watches capabilities and 30m wr is suddenly diver's ready.
This is absolutely true
Only casio Can do this
Because they have a very standardized automated wr test
Excellent video but it does depend on manufacturers reliably stating the actual ratings of their watches.
Great insights. Any idea how long before those ratings diminish due to aging gaskets? 10 years, 20 years, etc..
Depends on the silicone used and the gasket quality. Also if you swim in salt water they degrade faster.
Just buy another one 😂
Indeed, F-91W is 1 of my regular swimming watch. But Casio Instruction Manual did specify what is the meaning of different water resistant depth and indicate 30m is splash-proof only. I guess probably they just do not want people to sue them in the event of any mishap. ☺
Thanks!
Great video! Super informative - thanks.
Sorry man, you do not know how to use the device, You fill it with water, place the watch inside above the water level, then pressurise the tank, put the watch under the water, then realese the pressure, if the watch get any pressure from the tank, there will be bubles from the liking part of the watch.
You are absolutely right
That's the correct procedure for a watch maker testing an empty case.
On the other hand, if you want to show your UA-cam viewers that your hand cranked pressure tester can't destroy a $12 Casio watch, you start the stop watch and drop it in the water before cranking the pressure up to see if the watch is destroyed.
Amazing watch 😍 thanks for the video
That’s a great video.
Could you do the mq-24 as well? :)
The question that hasn't been asked or answered: How long will shose seals last? People go overboard with water resistance, because they want to make sure that even old seals will hold water while swimming.
Some industrial rubber hoses have to be replaced after six years at the latest, because rubber breaks down over time. Yet, many people wear G-shocks for decades without opening them (and breaking the factory seals, which benefits them as well).
Hey thanks for doing this test. The technical information was fascinating 👍
My father has his PADI Open Water certificate. He refused to drive with any watch that had buttons, he said it was too easy to bump a button and destroy the seal.
Could you possibly test some Skmei watches ? They're a very cheap Chinese brand doing Casio and Timex ripoffs....
PS : You might like to boost your lighting a bit, you're a little dark ...
Would like another video on how watches that are supposively water resistant get moisture trace on dial. Saw some of these on older Speedmaster and others.
Fantastic debunk video. I always try for 100 to 200 metres resistant in a watch. This just changed my mind.
Now fill it with mineral oil and it can go in the meriana trench
i've dived below 30m wearing f91w just to prove a point .i reckon it could go 100m in a test at a push Mechanical watches stop when the compressed case touches the movement .Don't get that with quartz and if you fill the case with oil a cheap quartz diver will go insane depths ,below 1000m
Water vapour can be a larger issue then water (why water resistant phones die so easily in just rain) and might it be the case that making something impervious to vapour gives it a higher pressure rating?
I actually do need a 250m Swiss automatic dive watch so I can tell the time slightly inaccurately while free diving to the Oceangate wreckage.
Have you ever tested the Hamilton khaki field mechanical? Says 50m but I’ve always assumed it’s more than suitable for swimming. Happy to send you mine to test!
Love the content 👍🏼
Meanwhile, my Scuba Dude is giving me serious side-eye...
When was snorkelling with My cheap 30m watch it all went with a fog. Even though I never descent more than 5m. Probably because I have been pressing buttons submerged
Harrison, can you please share a link to your water pressure testing device?
Did the tester come with instructions? It's being used incorrectly here.
People have taken these and i think the a168 or similar to several hunder meters of depth and the survived until the pressure bent the plastic screen so much, the screen broke the module by pressing on it. It never leaked though..
Thank you for explaining 😂 I’m a fan now
I could be completely wrong, but i think the hype was originally caused by the Swiss watch manufacturers, who were milking consumers with their high prices.
Casio blew the lid off the watch industry, with their bulletproof digital watches.
Many high end Swiss watches are marked "Officially certified" on the dial. In order to bear this label, their watches had to be tested and approved by a Swiss testing house.
Ive never seen any top Japanese watch, Seiko etc, bear this mark of excellence. I very much doubt that many Japanese watches are unable to meet these standards. Any thoughts ? .....
LA montre!!!! Une légende!!! merci!
I want to see that test with the omega 😂😂
But yes I think you have to hang the watch in the air then dunk it 👍
Can you test water resistance of Seiko SNXS79?
Interesting. I recently bought a new Chinese dive watch rated at 200 meters WR. It leaked washing the car. I too SCUBA dive. Over 100 dives and PADI Divemaster certified. For 30 years I dove with an Omega Seamaster 120, rated for only 120 meters with a push pull crown. It did fine diving for 30 years and then it didn't. Now I dive with the cheapest G-SHOCK. But you're right. I wouldn't hesitate to dive with any of my Casio watches. My current favorite is a round version of the Casio Royale rated at 100 meters. It has all the features of a G-SHOCK and Casio Royale for under $20.
I have Chinese watches and they are fine but i wouldn't trust to much on what they say. I have a 19$ cartier tank homage that they had the audacity to put swiss made on it 😂
Juat bought that metal strap casio yesterday
Great coverage on water resistance
I dive with my f91 at maximun of 30 m usually